Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1889)
ch operates to close it andcause the steam to act expansively in the cylinder, andthat the angle of the throw line of the cut-off valve Dto the other cam or to the crank-pin varies accordingas it is required to cut off the steam either earlier orlater in the stroke. The cam yoke is composed of two… … Fig. 267. 99A MECHANICAL DRAWING SELF-TAUGHT. of the yoke to take up the wear. It is obvious thatas the shaft revolves and carries the cam with it, itwill, by reason of its shape, move the yoke back andforth; thus, in the position of the parts shown in Figure267, the direction of rotation being…
Mechanical drawing
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